modules/swing/src/main/java/javafx/embed/swing/JFXPanel.java

@@ -206,15 +206,10 @@
     }
 
     // Initialize FX runtime when the JFXPanel instance is constructed
     private synchronized static void initFx() {
         // Note that calling PlatformImpl.startup more than once is OK
-        AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
-            System.setProperty("glass.win.uiScale", "100%");
-            System.setProperty("glass.win.renderScale", "100%");
-            return null;
-        });
         PlatformImpl.startup(() -> {
             // No need to do anything here
         });
     }
 

@@ -681,10 +676,13 @@
         if (scenePeer == null) {
             return;
         }
         if (pixelsIm == null) {
             createResizePixelBuffer(scaleFactor);
+            if (pixelsIm == null) {
+                return;
+            }
         }
         DataBufferInt dataBuf = (DataBufferInt)pixelsIm.getRaster().getDataBuffer();
         int[] pixelsData = dataBuf.getData();
         IntBuffer buf = IntBuffer.wrap(pixelsData);
         if (!scenePeer.getPixels(buf, pWidth, pHeight)) {

@@ -710,11 +708,11 @@
                 newScaleFactor = getDefaultScale(((SunGraphics2D)g).surfaceData);
             }
             if (scaleFactor != newScaleFactor) {
                 createResizePixelBuffer(newScaleFactor);
                 // The scene will request repaint.
-                scenePeer.setPixelScaleFactor(newScaleFactor);
+                scenePeer.setPixelScaleFactors(newScaleFactor, newScaleFactor);
                 scaleFactor = newScaleFactor;
             }
         } catch (Throwable th) {
             th.printStackTrace();
         } finally {

@@ -904,11 +902,11 @@
                 return;
             }
             if (pWidth > 0 && pHeight > 0) {
                 scenePeer.setSize(pWidth, pHeight);
             }
-            scenePeer.setPixelScaleFactor(scaleFactor);
+            scenePeer.setPixelScaleFactors(scaleFactor, scaleFactor);
 
             invokeOnClientEDT(() -> {
                 dnd = new SwingDnD(JFXPanel.this, scenePeer);
                 dnd.addNotify();
                 if (scenePeer != null) {